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Finding the Fourth Proportional to 188,715.46, 260,384.52 and 137,755.96

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Solution

The fourth proportional to 188,715.46, 260,384.52 and 137,755.96 is: 190,071.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,715.46 : 260,384.52 = 137,755.96 : x
  2. Step 2: Convert to fraction form
    188,715.46/260,384.52 = 137,755.96/x
  3. Step 3: Cross multiply
    188,715.46x = 260,384.52 × 137,755.96
  4. Step 4: Simplify right side
    188,715.46x = 35,869,519,521.74
  5. Step 5: Solve for x
    x = 35,869,519,521.74/188,715.46
  6. Step 6: Final answer
    x = 190,071.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.